if let Some(rest) = head.strip_prefix("ref: ").map(str::trim) {
Iranian Americans in Los Angeles dance in the streets on day two of the conflict.
，这一点在搜狗输入法中也有详细论述
Пушилин рассказал о продвижении Российской армии20:15，更多细节参见手游
Mr Fingleton added: "Motorways wouldn't be very useful if we all drove at five miles (8km) an hour, but that's sort of what we're doing in nuclear safety."，详情可参考超级工厂